Temperature controlled probe assembly

Details Temperature controlled probe assembly Temperature controlled probe assembly

1984-09-06

1989-12-26

Wayner, William E.

Heating

Having condition responsive control

Of or by heat generation or transmission

236 15BB, 374179, 374208, F27D 1900, F23N 100

Patent

active

048894834

ABSTRACT:
A temperature controlled probe assembly (58) for measuring log temperatures in a furnace (10) for heating metal logs (20) includes a carriage (88) selectively movable by a pneumatically controlled air cylinder (64). The carriage (88) includes a barrel (92) having an air chamber (102), a pair of thermocouple probe rods (40, 42) extending through the barrel (92), and cooling air channels (126) opening into the air chamber (102) for supplying air to cool the probes (40, 42). Another thermocouple (94) measures the temperature of the environment surrounding the thermocouple probe rods (40, 42) and a cooling air regulator (160) is selectively actuated when the temperature of the probe environment is greater than a predetermined temperature. The regulator (160) varies the amount of cooling air supplied to the probe rods (40, 42) in accordance with the amount of combustion air being used by the furnace (10).

REFERENCES:
patent: 3409217 (1968-11-01), Gentry
patent: 3921452 (1975-11-01), Sartorius
patent: 4257552 (1981-03-01), Farkas et al.
patent: 4309171 (1982-01-01), Gentry

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